Energy efficiency is one of the main challenges of Machine-to-Machine (M2M) networks, since they aim at connecting devices with limited access to power sources and operate
without human intervention. It has been shown ...

Cooperative Automatic Retransmission Request (C-ARQ) schemes allow those users which overhear a transmission to act as spontaneous relays when a packet has been received with errors at destination. When these users assist ...

Cooperative Automatic Retransmission Request
(C-ARQ) schemes exploit the broadcast nature
of the radio channel by allowing those users which
overhear a transmission to act as spontaneous relays
when a packet has been ...